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这个进位的时候从前往后扫和从后往前扫不是一样的吗？为啥从前往后就是WA????????????????

Posted by 4053040 at 2011-08-07 22:31:37 on Problem 2602 and last updated at 2011-08-07 22:50:58

for(i=n-1;i>=0;i--)
	    if(a[i]> '9' && i)
		{
		a[i]-=10;
		a[i-1] += 1;
		}
		a[n] = '\0';




for(i = 0; i < n; i ++)
	    if(a[i]> '9' && i)
		{
		a[i]-=10;
		a[i-1] += 1;
		}
		a[n] = '\0';

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